What is the main objective of GAGAN satellite?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Provide satellite-based navigation services
GAGAN (GPS Aided GEO Augmented Navigation) is an Indian Satellite-Based Augmentation System (SBAS) developed by ISRO and AAI. Its main objective is to enhance the accuracy, integrity, and reliability of GPS signals for civil aviation and other navigation purposes over India and the surrounding region.
The other options relate to:
- Remote sensing → Earth observation satellites
- X-ray/optical/UV studies → Astrosat
- Communication in remote areas → Communication satellites like GSAT series
Correct option: Provide satellite-based navigation services